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22 March, 09:27

What is the LCM of 30 and 70

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  1. 22 March, 10:48
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    210

    Step-by-step explanation:

    LCM means lowest common multiple

    Step 1 : write out multiples of 30

    30 X 1 = 30

    30 X 2 = 60

    30 X 3 = 90

    30 X 4 = 120

    30 X 5 = 150

    30 X 6 = 180

    30 X 7 = 210

    30 X 8 = 240

    Step 2: write out multiples of 70

    70 X 1 = 70

    70 X 2 = 140

    70 X 3 = 210

    70 X 4 = 280

    Step 3 : the lowest multiple of 30 and 70 that are common to each other is 210

    Hence, the LCM of 30 and 70 is 210
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